Home / 12,505.68-18,780.01-11,103.26

Finding the Fourth Proportional to 12,505.68, 18,780.01 and 11,103.26

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Solution

The fourth proportional to 12,505.68, 18,780.01 and 11,103.26 is: 16,673.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.68 : 18,780.01 = 11,103.26 : x
  2. Step 2: Convert to fraction form
    12,505.68/18,780.01 = 11,103.26/x
  3. Step 3: Cross multiply
    12,505.68x = 18,780.01 × 11,103.26
  4. Step 4: Simplify right side
    12,505.68x = 208,519,212.17
  5. Step 5: Solve for x
    x = 208,519,212.17/12,505.68
  6. Step 6: Final answer
    x = 16,673.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.